As someone who has participated in a wide variety of sports, including golf, baseball, softball, water skiing, volleyball, racquetball, squash, handball, football, collegiate hockey, weight lifting, etc, I am no stranger to exercise and 2 hour sessions in the gym.

A couple of years ago, complications from an old knee injury forced me to give up most sporting activities and forced me to visit an orthopedic doctor for multiple injections to help ease the pain. The prognosis for me was to tolerate the pain for as long as possible, then get a partial knee replacement.